Bobbin



J. W. BERRY BOBBIN Nov. 11, 1'952 3 Sheets-Sheet l Filed May i5, 195o l5F IGZ.

'& l1 I lo '2 1'4 I Il J. W. BERRY Nov. 11, 1952 BOBBIN 3 Sheets-Sheet 3Filed May 15, 1950 In the darwings:

Patented Nov. 11, 1952 BOBBIN Joseph Wallace Berry, Stourbridge,England, as-

signor to The Birmingham Aluminum Casting (1903) Company Limited,Birmingham, England, a British company Application May 15, 1950, SerialNo. 162,130'

VIn Great Britain May 26, 1949 11 Claims.

The invention relates to bobbins, reels and the like more especially tothose intended for use in the textile and allied trades.

A bobbin, reel, or the like in accordance with the present inventioncomprises a metal barrel and end anges secured thereon, wherein theiianges provide at intervals abutments for the ends of the barrel andrecessed seating portions to receive and seat upon the barrel ends andapertures through the flanges between the abutments in order that thebarrel ends are accessible from the outside of the anges when the latterare in position, which accessible portions are deformed behind parts ofthe flanges to secure the tubular barrel and flanges rigidly together.

It is preferred that the barrel and the iianges shall be made in a lightmetal such as aluminium or suitable alloys of aluminium or magnesium andthe term light metal used in this specification is intended to includesuch alloys.

Other preferred features of the invention are set forth in the followingdescription of examples of construction, in which reference is made tothe accompanying drawings, and in the claims hereinafter appearing.

Figure 1 is a sectional elevation of a bobbin the sectionV being takenon the vline I-I of Figure 3 and showing the assembled parts before theoperation for securing the flanges is completed.

Figure 2 is a similar view to Figure 1 with the section taken on theline 2--2 of Figure 3.

Figure 3 is an end viewv of the bobbin looking from the left'at Figurel.

Figure 4 is a section on line ll--i of Figure 5 showing one end of the`bobbin after the securing operation has taken place.

Figure 5v is an end view looking from the left at Figure 5. Y

Figure 6` is a sectional View on line E- of FigureY 7 cf a bobbin ofmodified construction.

Figure 7 is an end View of the bobbin shown :in Figure 6 looking fromthe left.

Figure 8 is van end view looking from the right atV Figure 6. v

In the example of construction illustrated in Figures 1 to 5, thereference numeral II) indicates the barrel of the bobbin, I `I is theleft hand end flange and I2 is the right hand end flange. The barrel maybe ,a drawn tube oi" light metal or one produced by die castingoperation, but the drawn tube is more convenient for large sizes ofbobbins. The flanges II and i2 are conveniently, but not necessarily,made as vlight metal castings preferably Vdie castings, Each ,flange 2is integral with a central boss I3 provided for mounting the bobbin in amachine for use. The greater part of this central boss is within the endof the barrel when the barrel and flanges are assembled and securedtogether. The central boss I3 and the flange (II or I2 as the case maybe) are rigidly connected together, in this example, by radial webs I4extending from the boss to an outwardly directed circumferential rim I5.The central boss and the web are spaced apart as at I5V so that eachflange has apertures passing through it from its inner face I7 to itsouter face I8 between the webs and the inner faces of the webs I4 arerecessed at I and, together, a seating is provided in the flange whichenables it to be passed on to the end of the barrel and to t thereon.Therecess I9 in the webs I4 is deeper from the inner face of the flangeto the abutmentr28 at the end of the recess than the distance betweenthe inner face Il of the flange and outer face I8 between the webs. Theend of the barrel passes through the apertures in the flange between thewebs and projects beyond the outer face I8 of the flange as at 2|,Figure 1, and provides substantial portions of the unbroken end which`are accessible from the outer face of the flange and can be forced ontothe surface I8 by drifts, punches, or like means into the position seenat 22 in Figures 4 and 5. The ab-utments 2 at the end of the deeprecesses I9 in the webs I4 provide a fixed and rigid stop against thebarrel ends and an exact location to give the desired axial separationof the flanges. The flanges are preferably pressed on to the barrel endsin a press and then the drifting` or expanding operation to deform thebarrel ends, is performed.

If desired the outer Aface vIll of each flange may be grooved orrecessed (not shown) and the metal of the anchorage portions 2| of thebarrel ends, which are expanded over the said face, are forced into thegrooves or recesses to enhance the keying effect.

The anges II and I2 are not necessarily the same in construction. Asshown in Figures 1 and 2 the flange I I is perpendicular to the barrelaxis at its inner face Il, and the flange I2 has the inner face Ilslightly conical and the rim l5 is of different shape. The flangeswillvary in size and design to adapt them'to the particular purposes forwhich the bobbin isintended.

The number of apertures 'I6 and consequently of anchorages 2l around thecircular seating of the flanges will depend to some extent on thedimensions of the bobbin or the like. The number should leavesubstantial webs I4 crossing the apertures I6 between the central bossand the circular seating of the ilanges. Six anchorages 2l and webs I4form a convenient arrangement for bobbinsV with barrels of about 11/2lto 2 diameter and provide a very strong unit.

As shown in Figures 6, 7 and 8 the barrel I@ may be formed of one-pieceof light metal tube having shapes that vary from the normal cylindricaltube and are formed by pressing, rolling or spinning operations.

By this means various shapeslof barrel which oier advantages in use, maybe produced as integral one piece tubular structures without anybuilding up or assembly of additional parts to produce the shapesrequired.

In this illustrated example a barrel Iil formed of cylindrical tube isleft cylindrical at one end and for part of its length is given aconical shape of larger diameter as at-23 near the otherA end which isreducedagain at 24.150 provide an integral cylindrical portion 25'forseating against its ange so that both ends are of even size and will fitiianges having circular seatings of the same size. The ilanges II andI2' in this example are of unequal size while" the seatingsr` of theflanges at the two ends' are ofi the same diameter, but obviously theseatings of the flanges II and I2 on the barrel ends may vary alsotosuit a barrel with different ends. The flange II is shown with smallwebs 26 across' the angles of its rim I5 in between the radial webs I d,while the flange I2, apart from the shallow circular face 21 againstwhich theA barrel end 28- is expanded, is of entirely different section.

I claim:

l. A bobbin comprising a tubular metal barrel, end flanges for thebarrel, a bearing boss integral with each ange, an annular wall of eachange surrounding and spaced from the bearing boss, spokes connectingsaid bess and wall and mainly disposed on the outer face of the Wall,seatings in the spokes for the end of said barrel, said seatingscommunicating with the opening defined by the spacing of said boss andwall and terminating each in an abutment surface for engagement by theend of the barrel when passed through said opening, said seatingsextending in an axial direction beyond the outer face of said wall, andcircumferentially spaced portions of the end of the barrel locatedbetween said spokes being expanded to extend over a portion of the outersurface of said wall for securing the barrel and flange rigidlytogether.

2. A bobbin comprising a tubular metal barrel, end anges for the barrel,a bearing boss integral with each flange, an annular wall of each ilangesurrounding and spaced from the bearing boss, a rim on the flange,spokes radiating from the boss to said rim, said spokes' being mainlydisposed on the outer face of the wall, seatings for the end of thebarrel recessed in the spokes and communicating with thev opening,deiined by said spaced boss and wall, said seatings extending in anaxial direction beyond thev outer' face of said wall and terminatingeach in an abutment .surface engaging the end of the barrel passedthrough said opening and seating, and portions of the end of the barrellocated between said spokes being expanded to extend over a portion ofthe outer face of said wall between said spokes for securing the barreland flange rigidly together.

3. A bobbin as specied in claim 2 in which 4 the spokes radiating fromthe boss to the rim connect said boss and wall.

4. In a bob-bin having a tubular metal barrel, end flanges for thebarrel each comprising a bearing boss, an annular wall surrounding andspaced from said boss, spokes radiating from the boss and connectingsaid boss and wall, said spokes being mainly disposed on the outer faceof the wall, and seatings for the end of the barrel recessed in saidspokes and communicating with the opening defined by said spaced bossand wall, said seatings extending axially beyond the outer face ofi thewall and terminating each in an abutment surface-adapted for engagementwith the barrell end when passed through said opening and seatings.

5. A bobbin as specified in claim 4 wherein a rim directed outwardlyfrom the annular wall is provided, said spokes radiating from the bossto said rim.

6. A bobbin as specified in claim l wherein the barrel is. provided withcylindrical end portions, a cylindrical bodyV portion adjacent one endportion, and a flared body portion adjacent the other end portion, saidflared portion being of a greater diameter thanY the cylindrical end andbody portions. of thebarrel.

7. A bobbin as specified in claim l wherein the. barrel is providedwithcylindrical end portions, a cylindrical body portion adjacent one endportion, anda conical dared body portion increasing in diameter towardsthe other end portion, said flared portion having a diameter greaterthan that ofthe cylindrical end and body portions of the barrel.

8; A bobbin comprising a tubular metal barrel, end anges for. thebarrel, bearing bosses and spaced connections' joining said bosses oneto each flange, a wall of each flange surrounding and spaced from thebearing boss to dene with the latter an annular opening through whichthe end of the barrel is passed, seatings in said connections for theend' of the barrel, and portions of the end of the barrel which protrudebetween said spaced connections being expanded to extend over a portionof the outer surface of said` wall of the flange.

9. A bobbin comprisingr a tubular metal barrel, end flanges for thebarrel each having a circumferential wall dening ya central circularrecess through which the end of the barrel is passed, a bearing bossentering` the end of the barrel, said boss being spaced from the innersurface of the barrel, members` integrally connecting said boss andwall, seatings in said members for circumferentially spaced portions ofthe end of the barrel, and further portions of the end of the barreldisposed between said circumferentially spaced and seated portions beingexpanded to extend overa portion of thevouter surface of the wall of thean'ge to secure the barrel and ange rigidly together.

10. A bobbin comprising a tubular metal barrel, end flanges for thebarrel, a wall of each ange dening a central circular opening throughwhich the end of the barrel is passed, a bearing boss entering the endof the barrel and maintained in spaced relationship thereto by membersradiating from the. boss and integrally connecting the boss to the wallof the ange, seatings in said members for Yreceiving circumferentiallyspaced portions of the end of the barrel, abutments on said membersagainst which the circumferentially spaced portions of the end of thebarrel abut when the end of the barrel is passed through said opening toprotrude beyond the surface' of the Wall, and portions of the end of thebarrel intervening between said circumferentially spaced portions beingexpanded to extend over a portion of the outer surface of the wall ofthe fiange to secure the barrel'and flange rigidly together. l

11. A bobbin reel comprising a met-a1 barrel, end flanges for thebarrel, a circumferential wall of each ange dening a central circularopening through which the end of the barrel is passed, a bearing bossreceived in and, spaced from the Abarrel and means connecting saidbearing boss and. wall ofthe ange in such manner that the internalsurface of the barrel is accessible :from 15 Number the outer face ofthe flange in order that portions of the end of the barrel can readilybe expanded to secure the ange to the barrel.

JOSEPH WALLACE BERRY.

EFERENCES CITED The following references are of record in the le of thispatent:

UNITED STATES PATENTS Y Number Name Date 1,842,113 Quigg Jan. 19, 1932FOREIGN PATENTS Country Date 503,688 Great Britain Apr. 13, 1949

